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https://github.com/RPCS3/llvm-mirror.git
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17e97fbf13
The 'common' section TLS is not implemented. Current C/C++ TLS variables are not placed in common section. DWARF debug info to get the address of TLS variables is not generated yet. clang and driver changes in http://reviews.llvm.org/D10524 Added -femulated-tls flag to select the emulated TLS model, which will be used for old targets like Android that do not support ELF TLS models. Added TargetLowering::LowerToTLSEmulatedModel as a target-independent function to convert a SDNode of TLS variable address to a function call to __emutls_get_address. Added into lib/Target/*/*ISelLowering.cpp to call LowerToTLSEmulatedModel for TLSModel::Emulated. Although all targets supporting ELF TLS models are enhanced, emulated TLS model has been tested only for Android ELF targets. Modified AsmPrinter.cpp to print the emutls_v.* and emutls_t.* variables for emulated TLS variables. Modified DwarfCompileUnit.cpp to skip some DIE for emulated TLS variabls. TODO: Add proper DIE for emulated TLS variables. Added new unit tests with emulated TLS. Differential Revision: http://reviews.llvm.org/D10522 llvm-svn: 243438
177 lines
4.6 KiB
LLVM
177 lines
4.6 KiB
LLVM
; RUN: llc < %s -march=x86-64 -mtriple=x86_64-linux-gnu | FileCheck -check-prefix=X64 %s
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; RUN: llc < %s -march=x86-64 -mtriple=x86_64-linux-gnu -relocation-model=pic | FileCheck -check-prefix=X64_PIC %s
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; RUN: llc < %s -march=x86 -mtriple=i386-linux-gnu | FileCheck -check-prefix=X32 %s
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; RUN: llc < %s -march=x86 -mtriple=i386-linux-gnu -relocation-model=pic | FileCheck -check-prefix=X32_PIC %s
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; Darwin always uses the same model.
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; RUN: llc < %s -march=x86-64 -mtriple=x86_64-apple-darwin | FileCheck -check-prefix=DARWIN %s
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@external_gd = external thread_local global i32
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@internal_gd = internal thread_local global i32 42
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@external_ld = external thread_local(localdynamic) global i32
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@internal_ld = internal thread_local(localdynamic) global i32 42
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@external_ie = external thread_local(initialexec) global i32
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@internal_ie = internal thread_local(initialexec) global i32 42
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@external_le = external thread_local(localexec) global i32
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@internal_le = internal thread_local(localexec) global i32 42
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; See test cases for emulated model in emutls.ll, emutls-pic.ll and emutls-pie.ll.
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; ----- no model specified -----
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define i32* @f1() {
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entry:
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ret i32* @external_gd
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; Non-PIC code can use initial-exec, PIC code has to use general dynamic.
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; X64-LABEL: f1:
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; X64: external_gd@GOTTPOFF
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; X32-LABEL: f1:
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; X32: external_gd@INDNTPOFF
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; X64_PIC-LABEL: f1:
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; X64_PIC: external_gd@TLSGD
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; X32_PIC-LABEL: f1:
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; X32_PIC: external_gd@TLSGD
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; DARWIN-LABEL: f1:
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; DARWIN: _external_gd@TLVP
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}
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define i32* @f2() {
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entry:
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ret i32* @internal_gd
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; Non-PIC code can use local exec, PIC code can use local dynamic.
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; X64-LABEL: f2:
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; X64: internal_gd@TPOFF
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; X32-LABEL: f2:
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; X32: internal_gd@NTPOFF
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; X64_PIC-LABEL: f2:
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; X64_PIC: internal_gd@TLSLD
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; X32_PIC-LABEL: f2:
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; X32_PIC: internal_gd@TLSLDM
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; DARWIN-LABEL: f2:
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; DARWIN: _internal_gd@TLVP
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}
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; ----- localdynamic specified -----
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define i32* @f3() {
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entry:
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ret i32* @external_ld
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; Non-PIC code can use initial exec, PIC code use local dynamic as specified.
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; X64-LABEL: f3:
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; X64: external_ld@GOTTPOFF
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; X32-LABEL: f3:
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; X32: external_ld@INDNTPOFF
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; X64_PIC-LABEL: f3:
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; X64_PIC: external_ld@TLSLD
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; X32_PIC-LABEL: f3:
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; X32_PIC: external_ld@TLSLDM
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; DARWIN-LABEL: f3:
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; DARWIN: _external_ld@TLVP
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}
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define i32* @f4() {
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entry:
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ret i32* @internal_ld
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; Non-PIC code can use local exec, PIC code can use local dynamic.
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; X64-LABEL: f4:
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; X64: internal_ld@TPOFF
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; X32-LABEL: f4:
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; X32: internal_ld@NTPOFF
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; X64_PIC-LABEL: f4:
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; X64_PIC: internal_ld@TLSLD
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; X32_PIC-LABEL: f4:
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; X32_PIC: internal_ld@TLSLDM
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; DARWIN-LABEL: f4:
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; DARWIN: _internal_ld@TLVP
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}
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; ----- initialexec specified -----
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define i32* @f5() {
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entry:
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ret i32* @external_ie
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; Non-PIC and PIC code will use initial exec as specified.
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; X64-LABEL: f5:
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; X64: external_ie@GOTTPOFF
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; X32-LABEL: f5:
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; X32: external_ie@INDNTPOFF
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; X64_PIC-LABEL: f5:
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; X64_PIC: external_ie@GOTTPOFF
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; X32_PIC-LABEL: f5:
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; X32_PIC: external_ie@GOTNTPOFF
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; DARWIN-LABEL: f5:
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; DARWIN: _external_ie@TLVP
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}
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define i32* @f6() {
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entry:
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ret i32* @internal_ie
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; Non-PIC code can use local exec, PIC code use initial exec as specified.
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; X64-LABEL: f6:
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; X64: internal_ie@TPOFF
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; X32-LABEL: f6:
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; X32: internal_ie@NTPOFF
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; X64_PIC-LABEL: f6:
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; X64_PIC: internal_ie@GOTTPOFF
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; X32_PIC-LABEL: f6:
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; X32_PIC: internal_ie@GOTNTPOFF
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; DARWIN-LABEL: f6:
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; DARWIN: _internal_ie@TLVP
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}
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define i32 @PR22083() {
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entry:
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ret i32 ptrtoint (i32* @external_ie to i32)
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; X64-LABEL: PR22083:
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; X64: movq external_ie@GOTTPOFF(%rip), %rax
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; X64_PIC-LABEL: PR22083:
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; X64_PIC: movq external_ie@GOTTPOFF(%rip), %rax
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}
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; ----- localexec specified -----
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define i32* @f7() {
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entry:
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ret i32* @external_le
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; Non-PIC and PIC code will use local exec as specified.
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; X64-LABEL: f7:
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; X64: external_le@TPOFF
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; X32-LABEL: f7:
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; X32: external_le@NTPOFF
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; X64_PIC-LABEL: f7:
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; X64_PIC: external_le@TPOFF
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; X32_PIC-LABEL: f7:
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; X32_PIC: external_le@NTPOFF
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; DARWIN-LABEL: f7:
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; DARWIN: _external_le@TLVP
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}
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define i32* @f8() {
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entry:
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ret i32* @internal_le
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; Non-PIC and PIC code will use local exec as specified.
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; X64-LABEL: f8:
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; X64: internal_le@TPOFF
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; X32-LABEL: f8:
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; X32: internal_le@NTPOFF
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; X64_PIC-LABEL: f8:
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; X64_PIC: internal_le@TPOFF
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; X32_PIC-LABEL: f8:
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; X32_PIC: internal_le@NTPOFF
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; DARWIN-LABEL: f8:
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; DARWIN: _internal_le@TLVP
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}
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